Improvement in revbl-vingtire-arms



UNITED IM PROVEMENT IN lR'Eil-"ouvi'N'e*FliRE-"A R M s.

Specification forming part of- Letters Patent N0. 24,942, ldated August 2, 1859.

'To all whom 'it may concern Fig. 2 Vis a transverse section of the same,fin

the line x of Fig. 1. Fig. 3 is a transverse section of the same,in thelineyyof Fig.1. Fig.

j tis a front view of the rotatingrecoil-shield.

Fig. 5 is a'central section of thesame. Figs.

Gand 7 are longitudinal views'ot" the two parts of the central pin on which the rotating manychambered cylinder turns. Fig. Sis a perspective view of the stop which locksthe cylinder 'at the time of the discharge of itschainbers.

Similar letters of reference indicate correspondin g parts in all theiigures.

Our invention consists in a certain improved construction of and mode of applying' the central pin upon which the inany-chanibcred'cylinder rotates, whereby 'greater facility-is afforded for the removal of the cylinderwhen desired.

It also consists in an improved mode of applying the dog` and ratchet through which the cylinder derives its rotary Vmotion from the hammer.

It also consists in an improved modeof'applying and operating the stop byv which the cylinder is locked while the hammer is'cocked and during the discharges of its chambers.

It also consists in an improved construction of the recon-shield.

To enable others skilled in the art to'm'ake and use our invention, we will proceed to describe ts construction and operation.

A B is the frame, which receiveswithin it the rotating many-chambered cylinder (i, and has secured to it the barrel D, and which consti stutes the principal portion of the stock. The Cylinder C, which has the common arrange ment of chambers and vents, is bored right through centrally for the center-pin E F, and

is counterbored some distance from the rear to K receive aspirahspring, a, Fig. 1, which surrounds-'af'portion of the center-pin. A bush, G, is fitted 'intothe rear portion of the counterbore to t the center-pin and contine thesprin g a, and' fthe rear portion of this bush has slots e e'on opposite sides of the center-pin toreceive two tins,b b, at the rear extremity of the said cen-terlpin EF. rrlhe center-pin E F is other.

l The'back'piece,F,which'ispermanently connected wit rthe cylinder, is of a length equal `ft'oor'n'ot greater than the length of the cylinder; Abut theffro'nt'one, E, Vmay be much shorter. The'said 4piece F isfor the most part'cylindrical;fbut"besid es"having the ns b b upon it, it has a' pin, c, inserted through it for the spring a, to act upon torpress it forward in the cylinder but vthe lengths of the ns Z1 b and slots 6 c are such 'that when the spring pushes the piece" F' so farforward that the iins are stopped 'fbyco'ning' in contact with the ends of the f slots, thesaid piece projects neither from the vt'rontnor the rear of the cylinder, and this is f the condition'of the'said piece F when the cylinder'is out of the frame, o r when it is not subject to 'the pressure ofthe piece E.

'I iie 'piece E is `cylindrical and of a size to `iitth'eentral bore of the cylinder. Itis Jfitted into va"`cylindrical cavity, h, Fig. 3, prepared Vforit "in -thefro'nt of the part A of the frame, "sa-id -cavityhibeing deep enough to receive the whole of said piece. To one side of said piece there isttached v'an elbow, d f, the portion d of'whicli is elastic and has a knob, g, at its extremiiy.

-Atone lside of the'cavity It there is a notch, t', (seeF-igs. 1 an( 3,) in the frame, into which itis necessary todraw the portion]L of the elbow'd f to yallow the whole of the piece E to -enterltliesaidcavity h.. Before placing the cylinder in the to itsfull length in said cavity h, with the portion d4 ofits elbow' outside of the frame; and when' lthev Cylinder is placed in the frame the piece vE is pushed back by taking hohl of the knob, g', and is turned to bring the portion j' of the elbow into a shallower notch, i', (sce Fig. 3,) above tl1e"notcl1i,-to prevent it'moving for- "wardagain, and is locked in this position by on the inner side of the portion'd, springing into a notch provided on' thev eXtemade in two `pieces placed in line with each 'frame the piece E is inserted rior of the frame. The sliding back of the piece E, as above specified, drives it some distanceinto the cylinder, and in so doing it drives back the piece F and causes its rear extremity to enter into a hole, j, Figs. 5 and 6, in the center of. the rotating recoil-shield H. This hole j has two slots, k k, on opposite sides, to

receive the two ins b b of the piece F for the purpose of compelling the said piece F and the cylinder to rotate along with the recoilshield. The piece E constitutes a stationary support to the front end of the cylinder.

To remove the cylinder it is only necessary to lay hold of the knob g and rst draw the pin g out of its notch in the frame, then turn the piece E far enough to bring the elbow opposite the notch t', when the pressure of the spring t forces forward the piece F, which drives forward the piece E clear of the cylinder and leaves the latter free of the recoil-shield, so that it will drop out of the frame.

The recoil-shield H is fitted into a cavity in the back of the frame A, and has formed in the same piece with it the peripheral ratchet ZZ and the ring of notches m m, the former to be acted upon by the dog u, Figs. 1 and 2, to produce the rotation ofthe cylinder, and the latter to be acted upon by the stop p, Figs. 1,2, and 8, to lock the cylinder. The said shield is kept in its place by a pin, q, which passes through the part A of the frame and enters agroove, 1", turned in said shield.

The dog n is made of a piece of spring-steel and has a small pin or projection, u', permanently secured to it at or near its lower end, and said pin enters a hole in the tumbler l ot' the hammer I. The said dog is confined to the ratchetll by themovable side plate, J, Fig. 2, of the stock, which constitutes a bearing for it, andin which there is a recess, s, Fig. 2, constituting a guide for said dog. By thus applying the dog to act transversely to the movement of the hammer, in combination with a peri pheral ratchet, the dog is made to constitute its own spring, and the construction of the lock of the revolver is much simplified, while greater facility is afforded for taking ont and replacing the said dog when necessary.

The stop p consists of a slightly curved piece of spring-steel, having near the top ofthe front side a tooth, p2, of a width to enter the notches m m in the rear of the recoil-shield, and having in its back side a projection, u. This stop is placed in an inclined position, (shown in Fig. 1,) between the front of the tumbler I and the back of the partAot' the frame,where it is kept in place by its own elasticity, which keeps it always in contact with the frame, the recoil-shield, and the tumbler. The said stop has applied to it a spring, t, which acts upon a projection, o, on one side of it, and exerts a tendency to move it bodily downward, and which, when the hammer is down, keeps the said stop, with its tooth p', in any one of the notches m m that is at the time opposite. to it, and so locks the recoil-shield and the cylinder securely against any possibility of revolving.

There is on the front of the tumbler I a tooth, u', which, when the stop-p is held down in the position above specified, occupies a position just below the projection u on the back of the stop. During the rst part ot' the drawing back of the hammer to cock it, and before the dog n commences to turn the recoil-shield, the-tooth u', by its action on the projection u, moves up the stop far enough to remove the tooth p' from the notch m. Almost immediately after having accomplished this the tooth u', by its circular motion, works clear of the projection u and leaves the stop free to be forced down by the spring v.- but as by this time the recoil-shield has commenced to be rotated by the action of the dog a the tooth p' does not drop back into the notch m when the stop descends, but it rests on the metal between it and the next notch till, as the hammer arrives at full-cock and the rotation jot' the recoil-shield is completed, the next notch m arrives opposite to the tooth,whieh instantly drops in and locks the recoil-shield and cylinder.

K, Fig. 1, is the ball-rammer, working in a suitable guide, w, Fig. 3, in the front part of the frame, and slotted vertically to receive within it part of a lever, L, which works on a tixed fulerum, Z. The lever L contains a curved slot, 10, which receives a roller, 11, that is iitted within the slot ofthe rammer to a pin, 12, that is inserted transversely through the last-named slot. The lever works the rammer by the action of the curved slot 10 on the roller 11. The front end of the lever L is bored out a short distance to receive the stem of a sliding tooth, 13, which has a spiral spring, 14, applied behind it. This tooth locks the lever close under the barrel by entering a fixed bush, 15, which is itted tightly into a hole drilled into the bottom ofthe barrel, near the muzzle thereof, the said bush having its interior conical and largest at the back, so as to afford a good hold for the tooth 13. The point of the tooth is beveled in two ways, so that it will slide into and out of the bush 15 with suicient freedom.

The reason for using the bush is that the making of a hoe largest at the back in the solid metal of the barrel would be a work of some difficulty.

What we claim as our invention, and desire to secure by Letters Patent, is

1. The center-pin E F, made in two pieces, one of which is fitted to the rotating cylinder and to a rotating recoil-shield with pins b b, and has applied to it within the cylinder a spring, a, and the other of which is fitted to slide and turn in the front part of the frame, and is capable of being locked to the frame, substantially as herein described.

2. The dog n, constructed and applied as described, to constitute its own spring, and operating transversely to the hammer, in combination with a peripherical ratchet, l Z, substatjtially as and for the purpose herein set fort 3. The stop p,construoted with zt tooth, 1J,in ripheral ratchet, l l, a. ring of notches, m m, a its front, and a. projection, u, on its back, and central bore, j, and slots k k, substantially as applied and operating in combination with a and for the purpose herein specified.

spring, o, a ring of notches, m m, on the rear S. C. LEWIS. ofthe recoil-shield or cylinder, and a tooth, u', F. P; PFLEGHAR. on the tumbler, substantially as herein de- Witnesses: scribed. G. 0. ROBINSON,

4. The recoil-shield constructed with a pe- Wu. SCHALLHORN. 

